Magma Chamber:The pocket beneath a volcano where magma collects
Pipe:a long tube though which magma moves from the magma chamber to Earth's surface.
Vent:The opening through which molten rock and gas leave a volcano.
Lava Flow:The area covered by lava as it pours out of a volcano's vent
Crater:A bowl-shaped area that forms around a volcano's central opening.
Silica:A material that is formed from the elements oxygen and silicon;silica is found in magma.
Pahoehoe:A hot fast-moving type of lava that hardens to form smooth, rope like coils.
AA:a slow moving type of lava that hardens to form rough chunks;cooler then pahoehoe.
Pyroclastic flow:The expulsion of ash,cinders,bombs,and gases during an explosive volcanic eruption.
Active:Said of a volcano that is erupting or had shown signs of erupting in the near future.
Dormant:Said of a volcano that does not show signs of erupting in the near future.
Extinct:said of a volcano that is unlikely to erupt again.
Hot Springs:A pool formed by groundwater that has risen to the surface after being heated by a nearby body of magma.
Geothermal Energy:Heat energy in Earth's Interior from water or steam that has been heated by magma.
Geyser:A type of hot spring that builds up pressure underground and erupts at regular intervals as a fountain of water and steam
Table of Contents
Volcanic Activity
Vocaulary
Magma Chamber:The pocket beneath a volcano where magma collects
Pipe:a long tube though which magma moves from the magma chamber to Earth's surface.
Vent:The opening through which molten rock and gas leave a volcano.
Lava Flow:The area covered by lava as it pours out of a volcano's vent
Crater:A bowl-shaped area that forms around a volcano's central opening.
Silica:A material that is formed from the elements oxygen and silicon;silica is found in magma.
Pahoehoe:A hot fast-moving type of lava that hardens to form smooth, rope like coils.
AA:a slow moving type of lava that hardens to form rough chunks;cooler then pahoehoe.
Pyroclastic flow:The expulsion of ash,cinders,bombs,and gases during an explosive volcanic eruption.
Active:Said of a volcano that is erupting or had shown signs of erupting in the near future.
Dormant:Said of a volcano that does not show signs of erupting in the near future.
Extinct:said of a volcano that is unlikely to erupt again.
Hot Springs:A pool formed by groundwater that has risen to the surface after being heated by a nearby body of magma.
Geothermal Energy:Heat energy in Earth's Interior from water or steam that has been heated by magma.
Geyser:A type of hot spring that builds up pressure underground and erupts at regular intervals as a fountain of water and steam
Outline